Pull up any market report for Chilmark and you'll find the same headline number: an average single-family sale price above $6.4 million in 2025, built on just 19 transactions and more than $122 million in total volume. It looks like the going rate for a house up-island. It isn't.
That same year, eight beach lots changed hands in Chilmark for prices between $105,000 and $650,000. Both facts are true. Both come from the same town, the same twelve months, the same market. The average and the actual range a buyer might encounter are barely speaking to each other, and understanding why matters more than the number itself if you're comparing Chilmark against Edgartown, Oak Bluffs, or anywhere else on the Vineyard.
A market built on a handful of sales, not a curve
Chilmark's real estate market is thin by design. Large lots, conservation restrictions, and a small year-round population mean transaction counts stay low no matter how strong demand gets. Nineteen sales is not a statistical sample large enough to produce a stable average. It's small enough that two or three unusual closings can swing the whole number.
That's exactly what happened in 2025. One of them was Blue Heron Farm, a 28.5-acre property on Tisbury Great Pond that sold for $37 million, one of only three residential sales in Vineyard history to cross $30 million. It came with two houses totaling nine bedrooms, a barn, a riding ring, horse paddocks, a tennis court, a pool, a boathouse, a dock, and private beach access. It is not a representative Chilmark home. It's an outlier so large that it alone reshapes the town's average.
Contrast that with Edgartown, which recorded 101 residential sales in 2025 for more than $359 million in volume and still landed at a lower average, around $3.56 million. More transactions smooth out the extremes. Oak Bluffs, with 82 sales, posted a median of about $1.16 million, a number that behaves the way medians are supposed to: it describes what a typical buyer actually paid, because there were enough typical buyers to describe.
| Town | 2025 Sales | Average / Median Price | Total Volume |
|---|---|---|---|
| Chilmark | 19 | ~$6.44M average | $122M+ |
| Edgartown | 101 | ~$3.56M average | $359M+ |
| Oak Bluffs | 82 | ~$1.16M median | Not disclosed in same report |
Island-wide, the picture is calmer but still climbing. The median single-family sale price across Martha's Vineyard reached nearly $1.7 million in 2025, and the first half of 2026 pushed that further, with the second quarter of 2026 posting a $1.9 million median and six sales over $10 million compared with just one in the same period the year before. Chilmark's swings are the same forces at work, just concentrated in a smaller pool where every large sale counts for more.
The fee that scales with the story
This isn't just an academic distinction about averages versus medians. It changes the size of a real check a buyer writes at closing.
Every property sale on Martha's Vineyard carries a 2 percent transfer fee that funds the Martha's Vineyard Land Bank, the organization responsible for conserving roughly 3,100 acres of island land, about 5 percent of its total area. The fee is paid by the buyer, and the deed cannot be recorded at the Dukes County Registry of Deeds until it's settled. There's no negotiating around it and no closing without it.
Run that 2 percent through Chilmark's actual 2025 transactions and the range is stark:
- On Blue Heron Farm's $37 million sale, the Land Bank fee alone came to $740,000.
- On a beach lot at the low end of Chilmark's 2025 range, $105,000, the fee would run about $2,100, and could be waived entirely for a qualifying first-time buyer under the Land Bank's exemption.
- On the town's own reported average sale price of $6.44 million, the fee would land near $128,700, a number that describes no actual transaction because no actual Chilmark home sold anywhere close to that average price.
The Land Bank does offer relief at the entry level. First-time buyers who have never owned property on the island get a portion of the purchase price exempted from the fee, a threshold the Land Bank Commission resets every December based on recent market activity. The last publicly confirmed adjustment put that threshold at $800,000, and given the Commission's pattern of raising it most years to track rising prices, the current figure has likely moved since. The mechanism matters more than the exact number: a first-time buyer closing on one of Chilmark's beach lots could plausibly owe little or nothing, while a buyer closing on an estate-scale property a few miles away owes an amount that would buy a house outright in most parts of the country.
That's the part flat comparisons miss. Two closings can happen in the same town in the same season with transfer fee obligations that differ by hundreds of thousands of dollars, and neither one looks like the "average" Chilmark buyer wrote a check for $128,700.
What this actually means if you're comparing towns
If you're weighing Chilmark against Edgartown or Oak Bluffs using average sale price as your yardstick, you're comparing a number distorted by a handful of estate sales against numbers built on far larger, steadier transaction pools. Edgartown's volume, 101 sales in 2025, makes its average a far more trustworthy stand-in for what you'd actually encounter house-hunting there. Chilmark's 19 sales don't offer that same reliability, and the town's own broker of a leading up-island firm characterized the market's tail end this way: beach lot pricing is essentially impossible to forecast because so few of them trade in any given year and inventory alone drives the outcome.
This matters practically in a few ways. If privacy, acreage, and conservation-adjacent land are the draw, Chilmark's appeal isn't priced the way a single average number suggests. It's priced across two very different tiers: modest land parcels and older homes at one end, and legacy estate compounds at the other, with very little in between. A buyer entering that market should be asking which tier a specific property actually belongs to, not what the town "averages," because the average describes neither tier particularly well.
It also means the Land Bank fee deserves its own line in any closing cost estimate before an offer goes in, not a mental placeholder assumed to be small. On a modest purchase it barely registers. On a Chilmark estate, it's a six-figure number that off-island lenders and advisors sometimes miss entirely when they run projections built around markets that don't carry a transfer fee at all.
Island-wide, the broader climate helps explain why these extremes keep showing up. The Vineyard's high-end segment kept expanding through 2025, with sales above $5 million rising from 22 the year before to 25, and the $10 million-plus tier doubling from four transactions to eight. That growth is concentrated in exactly the kind of properties that make Chilmark's average what it is. As the Land Bank's executive director put it after reviewing the 2025 numbers, the market had settled after a turbulent stretch and was starting to show signs of picking back up again heading into 2026.
A few questions worth asking before you compare towns on price alone
Does the Land Bank fee apply to land purchases, not just finished homes? Yes. The fee applies to nearly all real property transfers on the island, including vacant land and beach lots, with a short list of exemptions for transfers like gifts without consideration or transfers to government entities.
Is median price a better number than average for comparing Vineyard towns? In a low-volume market like Chilmark's, yes. Median describes the midpoint of what actually sold, while average can be pulled far off course by a single large transaction, which is precisely what happened with Blue Heron Farm in 2025.
Does the first-time buyer exemption reset every year? It does. The Land Bank Commission reviews and adjusts the threshold each December based on recent exemption activity, so the exact figure a buyer qualifies under depends on when the purchase closes.
Chilmark's numbers reward a closer look before they get used to compare towns or estimate what a purchase there will actually cost at the closing table. If you're weighing up-island privacy against a more liquid market elsewhere on the Vineyard, or trying to understand what a specific property's closing costs will really look like once the Land Bank fee is factored in, Jarrett Hurwitz can walk through the real numbers behind the headline ones. Schedule a free consultation to talk through what a Chilmark purchase, or any Vineyard purchase, actually involves.
